Momo API

Testing Env

https://testpay.onlinepay.ai

POST

/payment

OnlinePay will obtain the HTTP Header referer to verify the website source. The website source must be configured by OnlinePay to be verified. If you do not access the interface through a browser, you need to actively add a referer.

Request

Header Params

Body Params application/json

Example

{
  "currencyCode": "VND",
  "email": "test@example.com",
  "ipAddress": "127.0.0.1",
  "merNo": 840698790,
  "merOrderNo": "TEST1764921478116",
  "notifyUrl": "http://egg.sa1.tunnelfrp.com",
  "productName": "virtual product",
  "returnUrl": "http://egg.sa1.tunnelfrp.com/return",
  "sign": "LGwbhK4S4GaDUknYVSnGKyK41KKnklSJR5p79th/vRBZII4ofB2NFn1YjXaLtDDVA4yJkwchbZP2iiDeG8P+jQ==",
  "sourceAmount": "60000",
  "userId": "test_user_001",
  "version": "V3.0.0"
}

Request Code Samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

curl --location --request POST 'https://testpay.onlinepay.ai/payment' \
--header 'paymentType: MOMO' \
--header 'Referer: https://example.com' \
--header 'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36' \
--header 'Content-Type: application/json' \
--data-raw '{
  "currencyCode": "VND",
  "email": "test@example.com",
  "ipAddress": "127.0.0.1",
  "merNo": 840698790,
  "merOrderNo": "TEST1764921478116",
  "notifyUrl": "http://egg.sa1.tunnelfrp.com",
  "productName": "virtual product",
  "returnUrl": "http://egg.sa1.tunnelfrp.com/return",
  "sign": "LGwbhK4S4GaDUknYVSnGKyK41KKnklSJR5p79th/vRBZII4ofB2NFn1YjXaLtDDVA4yJkwchbZP2iiDeG8P+jQ==",
  "sourceAmount": "60000",
  "userId": "test_user_001",
  "version": "V3.0.0"
}'

Responses

🟢200OK

application/json

Body

Example

{
    "code": "00000",
    "data": {
        "tradeNo": "ONL02512051557582960",
        "merOrderNo": "TEST1764921478116",
        "payUrl": "https://v1.bit-qr.online/momoqr.php?token=BRGGJvgXZDVIaqB3aPn94w%3D%3D&id=20632305",
        "payCode": 2,
        "message": "Pending"
    },
    "message": "SUCCESS",
    "sign": "YxQvR+3qCvHHdU4i776m7szbAV3bUBQFYcsd4KJhUppVXe9ARKzWOkcf6YG3ftyBnk49U8Q02u8piye3s/JHrYXxER/cGCYTfiSqOMsIevIRYKnXGHzp6WLq0eJXgJ/SKY4rwD56YHiDYfkktggrGYnUQg52eMSR5ueO6tPK0RMudidXxbddGgmKn+gO7hI9QwP1hNtdwDWxuRJPibuKY0I+U8regCHL4n0694AyKroa1P5SwPhCQeYIqhd3qkHgdtdo1HebXbi/At6issA239HzQwNeysV8JN7iH1PI2krLcLHE3qxnhB9dh3vXyKpJO6urfmO9DrzYgHg+jvm1zA=="
}

🟠404Record not found

🟠400Invalid input

Modified at 2025-12-08 03:51:16

CheckOut Payment

Vietnam Bank API